Finding the Third Proportional to 1,091,298 and 1,683,603

Step by Step Solution

1. Step 1: Write the proportion equation
   1,091,298 : 1,683,603 = 1,683,603 : x
2. Step 2: Convert to fraction form
   1,091,298/1,683,603 = 1,683,603/x
3. Step 3: Cross multiply
   1,091,298x = 1,683,603 × 1,683,603
4. Step 4: Simplify right side
   1,091,298x = 2,834,519,061,609
5. Step 5: Solve for x
   x = 2,834,519,061,609/1,091,298
6. Step 6: Final answer
   x = 2,597,383.17